Date: Wed, 31 Mar 2004 00:04:02 EST-10EDT,10,-1,0,7200,3,-1,0,7200,3600
Subject: [UnixOS2_Archive] No. 331

**************************************************
Tuesday 30 March 2004
 Number  331
**************************************************

Subjects for today
 
1  Re:  Naming convention for libraries : Stefan Neis <neis at cdc.informatik.tu-darmstadt.de>
2  Re:  JPEG configure : John Poltorak <jp at warpix.org>
3   configure.in for jpeg v6b : John Poltorak <jp at warpix.org>
4  Re:  Building subversion (was /vfs?) : John Poltorak <jp at warpix.org>
5  Re:  Building subversion (was /vfs?) : Adrian Gschwend" <ktk at datacomm.ch>
6  Re:  configure.in for jpeg v6b : Andreas Buening <andreas.buening at nexgo.de>
7  Re:  configure.in for jpeg v6b : John Poltorak <jp at warpix.org>
8  Re:  Naming convention for libraries : John Poltorak <jp at warpix.org>
9  Re:  configure.in for jpeg v6b : Andreas Buening <andreas.buening at nexgo.de>
10  Re:  configure.in for jpeg v6b : Thomas Dickey <dickey at his.com>
11   omf, aout & FILE magic : John Poltorak <jp at warpix.org>
12   Targets in Makefiles : John Poltorak <jp at warpix.org>
13  Re:  Targets in Makefiles : Thomas Dickey <dickey at his.com>
14  Re:  Targets in Makefiles : Thomas Dickey <dickey at his.com>
15  Re:  Targets in Makefiles : John Poltorak <jp at warpix.org>
16   Conftools : John Poltorak <jp at warpix.org>
17  Re:  Targets in Makefiles : Stefan Neis <neis at cdc.informatik.tu-darmstadt.de>
18  Re:  Targets in Makefiles : Thomas Dickey <dickey at his.com>


**= Email   1 ==========================**

Date:  Mon, 29 Mar 2004 16:28:44 +0200 (CEST)
From:  Stefan Neis <neis at cdc.informatik.tu-darmstadt.de>
Subject:  Re:  Naming convention for libraries

On Mon, 29 Mar 2004, John Poltorak wrote:

> Is this an accurate picture of the proposed naming convention for libs:- ?
> 
> foo.dll		shared lib (DLL)     
> foo.a           static lib - a.out
> foo.lib		static lib - omf
> foo_s.a		shared import lib - a.out
> foo_s.lib	shared import lib - omf

No, for _s and non-_s flavor's it's exactly the other way round
("_s" stands for "static", not for "import")

	Regards,
		Stefan



**= Email   2 ==========================**

Date:  Mon, 29 Mar 2004 17:14:08 +0000
From:  John Poltorak <jp at warpix.org>
Subject:  Re:  JPEG configure

On Sun, Mar 28, 2004 at 03:39:22PM +0200, Stefan Neis wrote:
> On Sun, 28 Mar 2004, John Poltorak wrote:
> 
> > which says it has been automatically generated by autoconf (2.12) but 
> > there is no configure.in supplied? This means I can't rebuild one to check 
> > for options like executable suffix, so if CFLAGS is set to include -Zomf, 
> > configure fails.
> > 
> > Can anyone suggest a solution?
> 
> Writing to the maintainers and asking for configure.in? Preferably an
> updated one, which works with autoconf-2.5x ...

Would you believe, I managed to get hold of a configure.in ?!!!

I can't make much sense of it though...

I'll attach the files in another post in case someone knows what to do 
with them...

 
> 	Regards,
> 		Stefan
> -- 
> Micro$oft is not an answer. It is a question. The answer is 'no'.
> 


-- 
John




**= Email   3 ==========================**

Date:  Mon, 29 Mar 2004 17:17:34 +0000
From:  John Poltorak <jp at warpix.org>
Subject:   configure.in for jpeg v6b


--ZE40GXAdzZLXNGBW
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I'm forwarding a couple of files related to building jpeg v6b directly 
from the supplied configuration scripts which come with the distributed 
source. Unfortunately there was no configure.in so it was impossible to 
rebuild configure.

Can anyone see how suitable the attached files are?


-- 
John

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Received: from sss.pgh.pa.us by mail.warpix.org (IBM OS/2 SENDMAIL VERSION 2.03/2.0) id QAA030.75; Mon, 29 Mar 2004 16:58:50 GMT
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	by sss.pgh.pa.us (8.12.11/8.12.11) with ESMTP id i2TFwluA001370
	for <jp at warpix.org>; Mon, 29 Mar 2004 10:58:47 -0500 (EST)
To: John Poltorak <jp at warpix.org>
Subject: Re: jpeg v6b 
In-reply-to: <20040329163836.P44505 at warpix.org> 
References: <20040329163836.P44505 at warpix.org>
Comments: In-reply-to John Poltorak <jp at warpix.org>
	message dated "Mon, 29 Mar 2004 16:38:36 +0000"
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Content-ID: <1360.1080575855.0 at sss.pgh.pa.us>
Date: Mon, 29 Mar 2004 10:58:47 -0500
Message-ID: <1369.1080575927 at sss.pgh.pa.us>
From: Tom Lane <tgl at sss.pgh.pa.us>

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Content-ID: <1360.1080575855.1 at sss.pgh.pa.us>

> there is a configure script for building a Makefile. Many apps include, in 
> addition, a configure.in so that configure can be rebuilt if necessary. It 
> would appear that configure was actually built fom a configure.in, and I 
> wonder if it is possible to get hold of it...

Let's see ... configure is built like this:

configure: configure.in sed.cfg aclocal.m4
        autoconf configure.in | sed -f sed.cfg >configure
        chmod +x configure

This hasn't been updated for a little while, and I'd not be surprised if
the aclocal and sed hacks need work for newer versions of autoconf.

			regards, tom lane
			organizer, Independent JPEG Group


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Content-Description: configure.in

dnl IJG auto-configuration source file.
dnl Process this file with autoconf to produce a configure script.
AC_INIT(jcmaster.c)
AC_CONFIG_HEADER(jconfig.h:jconfig.cfg)
dnl
dnl do these first since other macros rely on them
AC_PROG_CC
AC_PROG_CPP
dnl
dnl See if compiler supports prototypes.
AC_MSG_CHECKING(for function prototypes)
AC_CACHE_VAL(ijg_cv_have_prototypes,
[AC_TRY_COMPILE([
int testfunction (int arg1, int * arg2); /* check prototypes */
struct methods_struct {		/* check method-pointer declarations */
  int (*error_exit) (char *msgtext);
  int (*trace_message) (char *msgtext);
  int (*another_method) (void);
};
int testfunction (int arg1, int * arg2) /* check definitions */
{ return arg2[arg1]; }
int test2function (void)	/* check void arg list */
{ return 0; }
], [ ], ijg_cv_have_prototypes=yes, ijg_cv_have_prototypes=no)])
AC_MSG_RESULT($ijg_cv_have_prototypes)
if test $ijg_cv_have_prototypes = yes; then
  AC_DEFINE(HAVE_PROTOTYPES,)
else
  echo Your compiler does not seem to know about function prototypes.
  echo Perhaps it needs a special switch to enable ANSI C mode.
  echo If so, we recommend running configure like this:
  echo "   ./configure  CC='cc -switch'"
  echo where -switch is the proper switch.
fi
dnl
dnl check header files
AC_CHECK_HEADER(stddef.h, AC_DEFINE(HAVE_STDDEF_H,))
AC_CHECK_HEADER(stdlib.h, AC_DEFINE(HAVE_STDLIB_H,))
AC_CHECK_HEADER(string.h,, AC_DEFINE(NEED_BSD_STRINGS,))
dnl See whether type size_t is defined in any ANSI-standard places;
dnl if not, perhaps it is defined in <sys/types.h>.
AC_MSG_CHECKING(for size_t)
AC_TRY_COMPILE([
#ifdef HAVE_STDDEF_H
#include <stddef.h>
#endif
#ifdef HAVE_STDLIB_H
#include <stdlib.h>
#endif
#include <stdio.h>
#ifdef NEED_BSD_STRINGS
#include <strings.h>
#else
#include <string.h>
#endif
typedef size_t my_size_t;
], [ my_size_t foovar; ], ijg_size_t_ok=yes,
[ijg_size_t_ok="not ANSI, perhaps it is in sys/types.h"])
AC_MSG_RESULT($ijg_size_t_ok)
if test "$ijg_size_t_ok" != yes; then
AC_CHECK_HEADER(sys/types.h, [AC_DEFINE(NEED_SYS_TYPES_H,)
AC_EGREP_CPP(size_t, [#include <sys/types.h>],
[ijg_size_t_ok="size_t is in sys/types.h"], ijg_size_t_ok=no)],
ijg_size_t_ok=no)
AC_MSG_RESULT($ijg_size_t_ok)
if test "$ijg_size_t_ok" = no; then
  echo Type size_t is not defined in any of the usual places.
  echo Try putting '"typedef unsigned int size_t;"' in jconfig.h.
fi
fi
dnl
dnl check compiler characteristics
AC_MSG_CHECKING(for type unsigned char)
AC_TRY_COMPILE(, [ unsigned char un_char; ],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_UNSIGNED_CHAR,)], AC_MSG_RESULT(no))
AC_MSG_CHECKING(for type unsigned short)
AC_TRY_COMPILE(, [ unsigned short un_short; ],
[AC_MSG_RESULT(yes)
AC_DEFINE(HAVE_UNSIGNED_SHORT,)], AC_MSG_RESULT(no))
AC_MSG_CHECKING(for type void)
AC_TRY_COMPILE([
/* Caution: a C++ compiler will insist on valid prototypes */
typedef void * void_ptr;	/* check void * */
#ifdef HAVE_PROTOTYPES		/* check ptr to function returning void */
typedef void (*void_func) (int a, int b);
#else
typedef void (*void_func) ();
#endif

#ifdef HAVE_PROTOTYPES		/* check void function result */
void test3function (void_ptr arg1, void_func arg2)
#else
void test3function (arg1, arg2)
     void_ptr arg1;
     void_func arg2;
#endif
{
  char * locptr = (char *) arg1; /* check casting to and from void * */
  arg1 = (void *) locptr;
  (*arg2) (1, 2);		/* check call of fcn returning void */
}
], [ ], AC_MSG_RESULT(yes), [AC_MSG_RESULT(no)
AC_DEFINE(void,char)])

AC_C_CONST
dnl check for non-broken inline under various spellings
AC_MSG_CHECKING(for inline)
ijg_cv_inline=""
AC_TRY_COMPILE(, [} __inline__ int foo() { return 0; }
int bar() { return foo();], ijg_cv_inline="__inline__",
AC_TRY_COMPILE(, [} __inline int foo() { return 0; }
int bar() { return foo();], ijg_cv_inline="__inline",
AC_TRY_COMPILE(, [} inline int foo() { return 0; }
int bar() { return foo();], ijg_cv_inline="inline")))
AC_MSG_RESULT($ijg_cv_inline)
AC_DEFINE_UNQUOTED(INLINE,$ijg_cv_inline)
dnl we cannot check for bogus warnings, but at least we can check for errors
AC_MSG_CHECKING(for broken incomplete types)
AC_TRY_COMPILE([ typedef struct undefined_structure * undef_struct_ptr; ], ,
AC_MSG_RESULT(ok),
[AC_MSG_RESULT(broken)
AC_DEFINE(INCOMPLETE_TYPES_BROKEN,)])
dnl test whether global names are unique to at least 15 chars
AC_MSG_CHECKING(for short external names)
AC_TRY_LINK([
int possibly_duplicate_function () { return 0; }
int possibly_dupli_function () { return 1; }
], [ ], AC_MSG_RESULT(ok), [AC_MSG_RESULT(short)
AC_DEFINE(NEED_SHORT_EXTERNAL_NAMES,)])
dnl
dnl run-time checks
AC_MSG_CHECKING(to see if char is signed)
AC_TRY_RUN([
#ifdef HAVE_PROTOTYPES
int is_char_signed (int arg)
#else
int is_char_signed (arg)
     int arg;
#endif
{
  if (arg == 189) {		/* expected result for unsigned char */
    return 0;			/* type char is unsigned */
  }
  else if (arg != -67) {	/* expected result for signed char */
    printf("Hmm, it seems 'char' is not eight bits wide on your machine.\n");
    printf("I fear the JPEG software will not work at all.\n\n");
  }
  return 1;			/* assume char is signed otherwise */
}
char signed_char_check = (char) (-67);
int main() {
  exit(is_char_signed((int) signed_char_check));
}], [AC_MSG_RESULT(no)
AC_DEFINE(CHAR_IS_UNSIGNED,)], AC_MSG_RESULT(yes),
[echo Assuming that char is signed on target machine.
echo If it is unsigned, this will be a little bit inefficient.
])
dnl
AC_MSG_CHECKING(to see if right shift is signed)
AC_TRY_RUN([
#ifdef HAVE_PROTOTYPES
int is_shifting_signed (long arg)
#else
int is_shifting_signed (arg)
     long arg;
#endif
/* See whether right-shift on a long is signed or not. */
{
  long res = arg >> 4;

  if (res == -0x7F7E80CL) {	/* expected result for signed shift */
    return 1;			/* right shift is signed */
  }
  /* see if unsigned-shift hack will fix it. */
  /* we can't just test exact value since it depends on width of long... */
  res |= (~0L) << (32-4);
  if (res == -0x7F7E80CL) {	/* expected result now? */
    return 0;			/* right shift is unsigned */
  }
  printf("Right shift isn't acting as I expect it to.\n");
  printf("I fear the JPEG software will not work at all.\n\n");
  return 0;			/* try it with unsigned anyway */
}
int main() {
  exit(is_shifting_signed(-0x7F7E80B1L));
}], [AC_MSG_RESULT(no)
AC_DEFINE(RIGHT_SHIFT_IS_UNSIGNED,)], AC_MSG_RESULT(yes),
AC_MSG_RESULT(Assuming that right shift is signed on target machine.))
dnl
AC_MSG_CHECKING(to see if fopen accepts b spec)
AC_TRY_RUN([
#include <stdio.h>
int main() {
  if (fopen("conftestdata", "wb") != NULL)
    exit(0);
  exit(1);
}], AC_MSG_RESULT(yes), [AC_MSG_RESULT(no)
AC_DEFINE(DONT_USE_B_MODE,)],
AC_MSG_RESULT(Assuming that it does.))
dnl
dnl system services
AC_PROG_INSTALL
AC_PROG_RANLIB

# Decide whether to use libtool,
# and if so whether to build shared, static, or both flavors of library.
AC_DISABLE_SHARED
AC_DISABLE_STATIC
if test "x$enable_shared" != xno  -o  "x$enable_static" != xno; then
  USELIBTOOL="yes"
  LIBTOOL="./libtool"
  O="lo"
  A="la"
  LN='$(LIBTOOL) --mode=link $(CC)'
  INSTALL_LIB='$(LIBTOOL) --mode=install ${INSTALL}'
  INSTALL_PROGRAM="\$(LIBTOOL) --mode=install $INSTALL_PROGRAM"
else
  USELIBTOOL="no"
  LIBTOOL=""
  O="o"
  A="a"
  LN='$(CC)'
  INSTALL_LIB="$INSTALL_DATA"
fi
AC_SUBST(LIBTOOL)
AC_SUBST(O)
AC_SUBST(A)
AC_SUBST(LN)
AC_SUBST(INSTALL_LIB)

# Configure libtool if needed.
if test $USELIBTOOL = yes; then
  AC_PROG_LIBTOOL
fi

# Select memory manager depending on user input.
# If no "-enable-maxmem", use jmemnobs
MEMORYMGR='jmemnobs.$(O)'
MAXMEM="no"
AC_ARG_ENABLE(maxmem,
[  --enable-maxmem[=N]     enable use of temp files, set max mem usage to N MB],
MAXMEM="$enableval")
dnl [# support --with-maxmem for backwards compatibility with IJG V5.]
dnl AC_ARG_WITH(maxmem, , MAXMEM="$withval")
if test "x$MAXMEM" = xyes; then
  MAXMEM=1
fi
if test "x$MAXMEM" != xno; then
changequote(, )dnl
  if test -n "`echo $MAXMEM | sed 's/[0-9]//g'`"; then
changequote([, ])dnl
    AC_MSG_ERROR(non-numeric argument to --enable-maxmem)
  fi
  DEFAULTMAXMEM=`expr $MAXMEM \* 1048576`
AC_DEFINE_UNQUOTED(DEFAULT_MAX_MEM, ${DEFAULTMAXMEM})
AC_MSG_CHECKING([for 'tmpfile()'])
AC_TRY_LINK([#include <stdio.h>], [ FILE * tfile = tmpfile(); ],
[AC_MSG_RESULT(yes)
MEMORYMGR='jmemansi.$(O)'],
[AC_MSG_RESULT(no)
dnl if tmpfile is not present, must use jmemname.
MEMORYMGR='jmemname.$(O)'
AC_DEFINE(NEED_SIGNAL_CATCHER,)
AC_MSG_CHECKING([for 'mktemp()'])
AC_TRY_LINK(, [ char fname[80]; mktemp(fname); ], AC_MSG_RESULT(yes),
[AC_MSG_RESULT(no)
AC_DEFINE(NO_MKTEMP,)])])
fi
AC_SUBST(MEMORYMGR)

# Include PNG support in cjpeg/djpeg if appropriate.
AC_ARG_WITH(png,
[  --with-png              enable PNG support in cjpeg/djpeg],
[#], [with_png="maybe"])

# try to detect whether libpng is present
if test "x$with_png" = xmaybe ; then
  AC_CHECK_HEADER(png.h, [# ok so far], [with_png="no"])
fi
if test "x$with_png" = xmaybe ; then
  AC_CHECK_HEADER(zlib.h, [# ok so far], [with_png="no"])
fi
if test "x$with_png" = xmaybe ; then
  AC_CHECK_LIB(z, deflate, [# ok so far], [with_png="no"])
fi
if test "x$with_png" = xmaybe ; then
  AC_CHECK_LIB(png, png_create_info_struct,
	[with_png="yes"], [with_png="no"], [-lz -lm])
fi

if test "x$with_png" = xyes ; then
  AC_DEFINE(PNG_SUPPORTED,)
  LIBS="-lpng -lz -lm $LIBS"
fi

# Extract the library version ID from jpeglib.h.
AC_MSG_CHECKING([libjpeg version number])
[JPEG_LIB_VERSION=`sed -e '/^#define JPEG_LIB_VERSION/!d' -e 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' $srcdir/jpeglib.h`]
AC_MSG_RESULT($JPEG_LIB_VERSION)
AC_SUBST(JPEG_LIB_VERSION)

# Prepare to massage makefile.cfg correctly.
if test $ijg_cv_have_prototypes = yes; then
  A2K_DEPS=""
  COM_A2K="# "
else
  A2K_DEPS="ansi2knr"
  COM_A2K=""
fi
AC_SUBST(A2K_DEPS)
AC_SUBST(COM_A2K)
# ansi2knr needs -DBSD if string.h is missing
if test $ac_cv_header_string_h = no; then
  ANSI2KNRFLAGS="-DBSD"
else
  ANSI2KNRFLAGS=""
fi
AC_SUBST(ANSI2KNRFLAGS)
dnl
# Substitutions to enable or disable libtool-related stuff
if test $USELIBTOOL = yes -a $ijg_cv_have_prototypes = yes; then
  COM_LT=""
else
  COM_LT="# "
fi
AC_SUBST(COM_LT)
if test "x$enable_shared" != xno; then
  FORCE_INSTALL_LIB="install-lib"
else
  FORCE_INSTALL_LIB=""
fi
AC_SUBST(FORCE_INSTALL_LIB)
dnl
# Set up -I directives
if test "x$srcdir" = x.; then
  INCLUDEFLAGS='-I$(srcdir)'
else
  if test "x$GCC" = xyes; then
    INCLUDEFLAGS='-I- -I. -I$(srcdir)'
  else
    INCLUDEFLAGS='-I. -I$(srcdir)'
  fi
fi
AC_SUBST(INCLUDEFLAGS)
dnl
AC_OUTPUT(Makefile:makefile.cfg)

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Content-ID: <1360.1080575855.3 at sss.pgh.pa.us>
Content-Description: sed.cfg

# Hack autoconf 2.1 configure script:
#
# Disable the conversion of #undef's to comments.
/^s%^\[ 	\]\*#\[ 	\]\*undef\[ 	\]\[ 	\]\*\[a-zA-Z_\]\[a-zA-Z_0-9\]\*%\/\* \& \*\/%/d

------- =_aaaaaaaaaa0
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Content-ID: <1360.1080575855.4 at sss.pgh.pa.us>
Content-Description: aclocal.m4

dnl
dnl version 2.13 AC_INIT_PARSE_ARGS(),
dnl modified to recognize options of form VAR=val
dnl
undefine([AC_INIT_PARSE_ARGS])
AC_DEFUN(AC_INIT_PARSE_ARGS,
[
# Initialize some variables set by options.
# The variables have the same names as the options, with
# dashes changed to underlines.
build=NONE
cache_file=./config.cache
exec_prefix=NONE
host=NONE
no_create=
nonopt=NONE
no_recursion=
prefix=NONE
program_prefix=NONE
program_suffix=NONE
program_transform_name=s,x,x,
silent=
site=
srcdir=
target=NONE
verbose=
x_includes=NONE
x_libraries=NONE
dnl Installation directory options.
dnl These are left unexpanded so users can "make install exec_prefix=/foo"
dnl and all the variables that are supposed to be based on exec_prefix
dnl by default will actually change.
dnl Use braces instead of parens because sh, perl, etc. also accept them.
bindir='${exec_prefix}/bin'
sbindir='${exec_prefix}/sbin'
libexecdir='${exec_prefix}/libexec'
datadir='${prefix}/share'
sysconfdir='${prefix}/etc'
sharedstatedir='${prefix}/com'
localstatedir='${prefix}/var'
libdir='${exec_prefix}/lib'
includedir='${prefix}/include'
oldincludedir='/usr/include'
infodir='${prefix}/info'
mandir='${prefix}/man'

# Initialize some other variables.
subdirs=
MFLAGS= MAKEFLAGS=
SHELL=${CONFIG_SHELL-/bin/sh}
# Maximum number of lines to put in a shell here document.
ac_max_here_lines=12

ac_prev=
for ac_option
do

  # If the previous option needs an argument, assign it.
  if test -n "$ac_prev"; then
    eval "$ac_prev=\$ac_option"
    ac_prev=
    continue
  fi

  case "$ac_option" in
changequote(, )dnl
  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
changequote([, ])dnl
  *) ac_optarg= ;;
  esac

  # Accept the important Cygnus configure options, so we can diagnose typos.

  case "$ac_option" in

  -bindir | --bindir | --bindi | --bind | --bin | --bi)
    ac_prev=bindir ;;
  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
    bindir="$ac_optarg" ;;

  -build | --build | --buil | --bui | --bu)
    ac_prev=build ;;
  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
    build="$ac_optarg" ;;

  -cache-file | --cache-file | --cache-fil | --cache-fi \
  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
    ac_prev=cache_file ;;
  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
    cache_file="$ac_optarg" ;;

  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
    ac_prev=datadir ;;
  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
  | --da=*)
    datadir="$ac_optarg" ;;

  -disable-* | --disable-*)
    ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
    # Reject names that are not valid shell variable names.
changequote(, )dnl
    if test -n "`echo $ac_feature| sed 's/[-a-zA-Z0-9_]//g'`"; then
changequote([, ])dnl
      AC_MSG_ERROR($ac_feature: invalid feature name)
    fi
    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
    eval "enable_${ac_feature}=no" ;;

  -enable-* | --enable-*)
    ac_feature=`echo $ac_option|sed -e 's/-*enable-//' -e 's/=.*//'`
    # Reject names that are not valid shell variable names.
changequote(, )dnl
    if test -n "`echo $ac_feature| sed 's/[-_a-zA-Z0-9]//g'`"; then
changequote([, ])dnl
      AC_MSG_ERROR($ac_feature: invalid feature name)
    fi
    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
    case "$ac_option" in
      *=*) ;;
      *) ac_optarg=yes ;;
    esac
    eval "enable_${ac_feature}='$ac_optarg'" ;;

  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
  | --exec | --exe | --ex)
    ac_prev=exec_prefix ;;
  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
  | --exec=* | --exe=* | --ex=*)
    exec_prefix="$ac_optarg" ;;

  -gas | --gas | --ga | --g)
    # Obsolete; use --with-gas.
    with_gas=yes ;;

  -help | --help | --hel | --he)
    # Omit some internal or obsolete options to make the list less imposing.
    # This message is too long to be a string in the A/UX 3.1 sh.
    cat << EOF
changequote(, )dnl
Usage: configure [options] [host]
Options: [defaults in brackets after descriptions]
Configuration:
  --cache-file=FILE       cache test results in FILE
  --help                  print this message
  --no-create             do not create output files
  --quiet, --silent       do not print \`checking...' messages
  --version               print the version of autoconf that created configure
Directory and file names:
  --prefix=PREFIX         install architecture-independent files in PREFIX
                          [$ac_default_prefix]
  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
                          [same as prefix]
  --bindir=DIR            user executables in DIR [EPREFIX/bin]
  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
  --datadir=DIR           read-only architecture-independent data in DIR
                          [PREFIX/share]
  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
                          [PREFIX/com]
  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
  --includedir=DIR        C header files in DIR [PREFIX/include]
  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
  --infodir=DIR           info documentation in DIR [PREFIX/info]
  --mandir=DIR            man documentation in DIR [PREFIX/man]
  --srcdir=DIR            find the sources in DIR [configure dir or ..]
  --program-prefix=PREFIX prepend PREFIX to installed program names
  --program-suffix=SUFFIX append SUFFIX to installed program names
  --program-transform-name=PROGRAM
                          run sed PROGRAM on installed program names
EOF
    cat << EOF
Host type:
  --build=BUILD           configure for building on BUILD [BUILD=HOST]
  --host=HOST             configure for HOST [guessed]
  --target=TARGET         configure for TARGET [TARGET=HOST]
Features and packages:
  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
  --x-includes=DIR        X include files are in DIR
  --x-libraries=DIR       X library files are in DIR
changequote([, ])dnl
EOF
    if test -n "$ac_help"; then
      echo "--enable and --with options recognized:$ac_help"
    fi
    exit 0 ;;

  -host | --host | --hos | --ho)
    ac_prev=host ;;
  -host=* | --host=* | --hos=* | --ho=*)
    host="$ac_optarg" ;;

  -includedir | --includedir | --includedi | --included | --include \
  | --includ | --inclu | --incl | --inc)
    ac_prev=includedir ;;
  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
  | --includ=* | --inclu=* | --incl=* | --inc=*)
    includedir="$ac_optarg" ;;

  -infodir | --infodir | --infodi | --infod | --info | --inf)
    ac_prev=infodir ;;
  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
    infodir="$ac_optarg" ;;

  -libdir | --libdir | --libdi | --libd)
    ac_prev=libdir ;;
  -libdir=* | --libdir=* | --libdi=* | --libd=*)
    libdir="$ac_optarg" ;;

  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
  | --libexe | --libex | --libe)
    ac_prev=libexecdir ;;
  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
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    libexecdir="$ac_optarg" ;;

  -localstatedir | --localstatedir | --localstatedi | --localstated \
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  | --locals | --local | --loca | --loc | --lo)
    ac_prev=localstatedir ;;
  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
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    localstatedir="$ac_optarg" ;;

  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
    ac_prev=mandir ;;
  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
    mandir="$ac_optarg" ;;

  -nfp | --nfp | --nf)
    # Obsolete; use --without-fp.
    with_fp=no ;;

  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
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    no_create=yes ;;

  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
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    no_recursion=yes ;;

  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
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    ac_prev=oldincludedir ;;
  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
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    oldincludedir="$ac_optarg" ;;

  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
    ac_prev=prefix ;;
  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
    prefix="$ac_optarg" ;;

  -program-prefix | --program-prefix | --program-prefi | --program-pref \
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    ac_prev=program_prefix ;;
  -program-prefix=* | --program-prefix=* | --program-prefi=* \
  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
    program_prefix="$ac_optarg" ;;

  -program-suffix | --program-suffix | --program-suffi | --program-suff \
  | --program-suf | --program-su | --program-s)
    ac_prev=program_suffix ;;
  -program-suffix=* | --program-suffix=* | --program-suffi=* \
  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
    program_suffix="$ac_optarg" ;;

  -program-transform-name | --program-transform-name \
  | --program-transform-nam | --program-transform-na \
  | --program-transform-n | --program-transform- \
  | --program-transform | --program-transfor \
  | --program-transfo | --program-transf \
  | --program-trans | --program-tran \
  | --progr-tra | --program-tr | --program-t)
    ac_prev=program_transform_name ;;
  -program-transform-name=* | --program-transform-name=* \
  | --program-transform-nam=* | --program-transform-na=* \
  | --program-transform-n=* | --program-transform-=* \
  | --program-transform=* | --program-transfor=* \
  | --program-transfo=* | --program-transf=* \
  | --program-trans=* | --program-tran=* \
  | --progr-tra=* | --program-tr=* | --program-t=*)
    program_transform_name="$ac_optarg" ;;

  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
  | -silent | --silent | --silen | --sile | --sil)
    silent=yes ;;

  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
    ac_prev=sbindir ;;
  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
  | --sbi=* | --sb=*)
    sbindir="$ac_optarg" ;;

  -sharedstatedir | --sharedstatedir | --sharedstatedi \
  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
  | --sharedst | --shareds | --shared | --share | --shar \
  | --sha | --sh)
    ac_prev=sharedstatedir ;;
  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
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  | --sha=* | --sh=*)
    sharedstatedir="$ac_optarg" ;;

  -site | --site | --sit)
    ac_prev=site ;;
  -site=* | --site=* | --sit=*)
    site="$ac_optarg" ;;

  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
    ac_prev=srcdir ;;
  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
    srcdir="$ac_optarg" ;;

  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
  | --syscon | --sysco | --sysc | --sys | --sy)
    ac_prev=sysconfdir ;;
  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
    sysconfdir="$ac_optarg" ;;

  -target | --target | --targe | --targ | --tar | --ta | --t)
    ac_prev=target ;;
  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
    target="$ac_optarg" ;;

  -v | -verbose | --verbose | --verbos | --verbo | --verb)
    verbose=yes ;;

  -version | --version | --versio | --versi | --vers)
    echo "configure generated by autoconf version AC_ACVERSION"
    exit 0 ;;

  -with-* | --with-*)
    ac_package=`echo $ac_option|sed -e 's/-*with-//' -e 's/=.*//'`
    # Reject names that are not valid shell variable names.
changequote(, )dnl
    if test -n "`echo $ac_package| sed 's/[-_a-zA-Z0-9]//g'`"; then
changequote([, ])dnl
      AC_MSG_ERROR($ac_package: invalid package name)
    fi
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    case "$ac_option" in
      *=*) ;;
      *) ac_optarg=yes ;;
    esac
    eval "with_${ac_package}='$ac_optarg'" ;;

  -without-* | --without-*)
    ac_package=`echo $ac_option|sed -e 's/-*without-//'`
    # Reject names that are not valid shell variable names.
changequote(, )dnl
    if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
changequote([, ])dnl
      AC_MSG_ERROR($ac_package: invalid package name)
    fi
    ac_package=`echo $ac_package| sed 's/-/_/g'`
    eval "with_${ac_package}=no" ;;

  --x)
    # Obsolete; use --with-x.
    with_x=yes ;;

  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
  | --x-incl | --x-inc | --x-in | --x-i)
    ac_prev=x_includes ;;
  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
    x_includes="$ac_optarg" ;;

  -x-libraries | --x-libraries | --x-librarie | --x-librari \
  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
    ac_prev=x_libraries ;;
  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
    x_libraries="$ac_optarg" ;;

  -*) AC_MSG_ERROR([$ac_option: invalid option; use --help to show usage])
    ;;

dnl begin tgl addition
  *=*)
    varname=`echo "$ac_option"|sed -e 's/=.*//'`
    # Reject names that aren't valid shell variable names.
changequote(, )dnl
    if test -n "`echo $varname| sed 's/[a-zA-Z0-9_]//g'`"; then
changequote([, ])dnl
      AC_MSG_ERROR([$varname: invalid shell variable name])
    fi
changequote(, )dnl
    val="`echo "$ac_option"|sed 's/[^=]*=//'`"
changequote([, ])dnl
    test -n "$verbose" && echo "	setting shell variable $varname to $val"
    eval "$varname='$val'"
    eval "export $varname" ;;
dnl end tgl addition

  *)
changequote(, )dnl
    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
changequote([, ])dnl
      AC_MSG_WARN($ac_option: invalid host type)
    fi
    if test "x$nonopt" != xNONE; then
      AC_MSG_ERROR(can only configure for one host and one target at a time)
    fi
    nonopt="$ac_option"
    ;;

  esac
done

if test -n "$ac_prev"; then
  AC_MSG_ERROR(missing argument to --`echo $ac_prev | sed 's/_/-/g'`)
fi
])
dnl
dnl version 2.13 AC_PROG_CC, modified so that default CFLAGS is set more
dnl appropriately; specifically, default is -O2 for gcc and -O otherwise.
dnl
undefine([AC_PROG_CC])
AC_DEFUN(AC_PROG_CC,
[AC_BEFORE([$0], [AC_PROG_CPP])dnl
AC_CHECK_PROG(CC, gcc, gcc)
if test -z "$CC"; then
  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
  if test -z "$CC"; then
    case "`uname -s`" in
    *win32* | *WIN32*)
      AC_CHECK_PROG(CC, cl, cl) ;;
    esac
  fi
  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
fi

AC_PROG_CC_WORKS
AC_PROG_CC_GNU

if test $ac_cv_prog_gcc = yes; then
  GCC=yes
  test "${CFLAGS+set}" = set || CFLAGS="-O2"
else
  GCC=
  test "${CFLAGS+set}" = set || CFLAGS="-O"
fi
])
dnl
dnl Include libtool macros (currently using libtool 1.3.2)
dnl
sinclude(/usr/local/share/aclocal/libtool.m4)dnl

------- =_aaaaaaaaaa0--

--ZE40GXAdzZLXNGBW--



**= Email   4 ==========================**

Date:  Mon, 29 Mar 2004 17:21:35 +0000
From:  John Poltorak <jp at warpix.org>
Subject:  Re:  Building subversion (was /vfs?)

On Mon, Mar 29, 2004 at 01:12:53PM +0200, Stefan Neis wrote:
> On Mon, 29 Mar 2004, John Poltorak wrote:
> 
> > In file included from u:\posix2\include\unistd.h:232,
> >                  from sockopt.c:65:
> > 
> > Does this mean anything to anyone?
> 
> 
> That's what I said in my other mail: at the head of sockopt.c there are
> two blocks of includes, the first set with #include "filename", the second
> set with #include <filename>. Exchanging those two blocks (i.e. the one
> with <> first, the one with "" after that) makes the thing compile - and
> then you'll likely fail when libtool is used ...

I tried this but saw no difference at all...

 
> 	Regards,
> 		Stefan
> -- 
> Micro$oft is not an answer. It is a question. The answer is 'no'.
> 


-- 
John




**= Email   5 ==========================**

Date:  Mon, 29 Mar 2004 21:48:57 +0200 (CEST)
From:  "Adrian Gschwend" <ktk at datacomm.ch>
Subject:  Re:  Building subversion (was /vfs?)

On Mon, 29 Mar 2004 08:43:04 GMT, Johannes Fahrenkrug wrote:

>Well, I can't really say that we are working with it yet, because I 
>just set up the svn server and now the problem is to get the 
>subversion client to run under os/2. But everything I read about 
>subversion convinced me to use svn over cvs. I've worked with cvs for 
>quite a while, too, but subversion is much more powerful and easier to 
>use, imho.

ACK. Once you get that running on /2 I would also think about migrating
the CVS repository at netlabs.org to subversion too. It cleans up with
several stupid things in CVS...

cu

Adrian


-- 
Adrian Gschwend
 at  netlabs.org

ktk [a t] netlabs.org
-------
Free Software for OS/2 and eCS
http://www.netlabs.org



**= Email   6 ==========================**

Date:  Mon, 29 Mar 2004 21:50:25 +0100
From:  Andreas Buening <andreas.buening at nexgo.de>
Subject:  Re:  configure.in for jpeg v6b

John Poltorak wrote:

> Can anyone see how suitable the attached files are?

They seem to be really ancient. You can try to run
aclocal/autoconf/autoheader but it's very likely that something
won't work.


Bye,
Andreas


**= Email   7 ==========================**

Date:  Mon, 29 Mar 2004 20:58:19 +0000
From:  John Poltorak <jp at warpix.org>
Subject:  Re:  configure.in for jpeg v6b

On Mon, Mar 29, 2004 at 09:50:25PM +0100, Andreas Buening wrote:
> John Poltorak wrote:
> 
> > Can anyone see how suitable the attached files are?
> 
> They seem to be really ancient. 

Well it's six years since the app came out and some of the files are 10 
years old..

> You can try to run
> aclocal/autoconf/autoheader but it's very likely that something
> won't work.

Which version of autoconf would you suggest?
 
> 
> Bye,
> Andreas


-- 
John



**= Email   8 ==========================**

Date:  Mon, 29 Mar 2004 21:20:56 +0000
From:  John Poltorak <jp at warpix.org>
Subject:  Re:  Naming convention for libraries

On Mon, Mar 29, 2004 at 04:28:44PM +0200, Stefan Neis wrote:
> On Mon, 29 Mar 2004, John Poltorak wrote:
> 
> > Is this an accurate picture of the proposed naming convention for libs:- ?
> > 
> > foo.dll		shared lib (DLL)     
> > foo.a           static lib - a.out
> > foo.lib		static lib - omf
> > foo_s.a		shared import lib - a.out
> > foo_s.lib	shared import lib - omf
> 
> No, for _s and non-_s flavor's it's exactly the other way round
> ("_s" stands for "static", not for "import")


So as far as ZLIB goes, should this:-

LDFLAGS=-s -L. -llibz -Zcrtdll
LDSHARED=$(CC) -s -Zdll -Zcrtdll

VER=1.1.4
ZLIB=libz_s.a
SHAREDLIB=z.dll
SHAREDLIBIMP=libz.a
LIBS=$(ZLIB) $(SHAREDLIB) $(SHAREDLIBIMP)


 be changed to:-   


LDFLAGS=-s -L. -lz -Zcrtdll
LDSHARED=$(CC) -s -Zdll -Zcrtdll

VER=1.1.4
ZLIB=z_s.a
SHAREDLIB=z.dll
SHAREDLIBIMP=z.a
LIBS=$(ZLIB) $(SHAREDLIB) $(SHAREDLIBIMP)

?


> 
> 	Regards,
> 		Stefan
> 


-- 
John



**= Email   9 ==========================**

Date:  Mon, 29 Mar 2004 22:27:11 +0100
From:  Andreas Buening <andreas.buening at nexgo.de>
Subject:  Re:  configure.in for jpeg v6b

John Poltorak wrote:
> 
> On Mon, Mar 29, 2004 at 09:50:25PM +0100, Andreas Buening wrote:

> > You can try to run
> > aclocal/autoconf/autoheader but it's very likely that something
> > won't work.
> 
> Which version of autoconf would you suggest?

Any. But I guess, it won't work out of the box and you'll need someone
who has an idea what the configure.in tests are supposed to do and
who has some hours of spare time to update configure.in.
Sounds like a lot of work. ;-)


Bye,
Andreas


**= Email   10 ==========================**

Date:  Mon, 29 Mar 2004 16:00:38 -0500 (EST)
From:  Thomas Dickey <dickey at his.com>
Subject:  Re:  configure.in for jpeg v6b

On Mon, 29 Mar 2004, John Poltorak wrote:

> On Mon, Mar 29, 2004 at 09:50:25PM +0100, Andreas Buening wrote:
> > John Poltorak wrote:
> >
> > > Can anyone see how suitable the attached files are?
> >
> > They seem to be really ancient.
>
> Well it's six years since the app came out and some of the files are 10
> years old..
>
> > You can try to run
> > aclocal/autoconf/autoheader but it's very likely that something
> > won't work.
>
> Which version of autoconf would you suggest?

It doesn't make much difference (obviously it was written for 2.12 or
2.13, but the script itself is rather crude and should be rewritten).
But if you go to 2.5x, that opens up new cans of worms (libtool ;-).

I thought the point was to find someone upstream who would take
responsibility for the result rather than find new packages to maintain...

-- 
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net


**= Email   11 ==========================**

Date:  Tue, 30 Mar 2004 10:25:40 +0000
From:  John Poltorak <jp at warpix.org>
Subject:   omf, aout & FILE magic

The FILE utility is excellent for identifying file types.
Unfortunately it doesn't describe files as being of OMF or AOUT type but 
uses some other terms. I was wondering if getting a more useful 
description for OS/2 users was as simple as changing a few strings in 
FILE's magic file...

If anyone if familiar with file signatures, can you suggest which of the 
following may be identified differently by OS/2 users?


#------------------------------------------------------------------------------
# linux:  file(1) magic for Linux files
#
# Values for Linux/i386 binaries, from Daniel Quinlan 
<quinlan at yggdrasil.com>
# The following basic Linux magic is useful for reference, but using
# "long" magic is a better practice in order to avoid collisions.
#
# 2	leshort		100		Linux/i386
# >0	leshort		0407		impure executable (OMAGIC)
# >0	leshort		0410		pure executable (NMAGIC)
# >0	leshort		0413		demand-paged executable (ZMAGIC)
# >0	leshort		0314		demand-paged executable (QMAGIC)
#
0	lelong		0x00640107	Linux/i386 impure executable (OMAGIC)
>16	lelong		0		\b, stripped
0	lelong		0x00640108	Linux/i386 pure executable (NMAGIC)
>16	lelong		0		\b, stripped
0	lelong		0x0064010b	Linux/i386 demand-paged executable (ZMAGIC)
>16	lelong		0		\b, stripped
0	lelong		0x006400cc	Linux/i386 demand-paged executable (QMAGIC)
>16	lelong		0		\b, stripped
#
0	string		\007\001\000	Linux/i386 object file
>20	lelong		>0x1020		\b, DLL library





-- 
John



**= Email   12 ==========================**

Date:  Tue, 30 Mar 2004 13:09:14 +0000
From:  John Poltorak <jp at warpix.org>
Subject:   Targets in Makefiles



Is it possible to use a name as a target in a Makefile by equating that 
name with a file?

I'm thinking of something along the lines of:-


zlib = /usr/lib/z.dll


zlib: $(zlib)
	 at build zlib


Could I expect to be able to make 'zlib' if /usr/lib/z.dll did not exist?


-- 
John



**= Email   13 ==========================**

Date:  Tue, 30 Mar 2004 07:21:08 -0500 (EST)
From:  Thomas Dickey <dickey at his.com>
Subject:  Re:  Targets in Makefiles

On Tue, 30 Mar 2004, John Poltorak wrote:

>
>
> Is it possible to use a name as a target in a Makefile by equating that
> name with a file?
>
> I'm thinking of something along the lines of:-
>
>
> zlib = /usr/lib/z.dll
>
>
> zlib: $(zlib)
> 	 at build zlib
>
>
> Could I expect to be able to make 'zlib' if /usr/lib/z.dll did not exist?

No - "make" may report that it does not know how to make /usr/lib/z.dll
(But if you have a rule in the makefile that does this, it'll work).

-- 
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net


**= Email   14 ==========================**

Date:  Tue, 30 Mar 2004 07:21:08 -0500 (EST)
From:  Thomas Dickey <dickey at his.com>
Subject:  Re:  Targets in Makefiles

On Tue, 30 Mar 2004, John Poltorak wrote:

>
>
> Is it possible to use a name as a target in a Makefile by equating that
> name with a file?
>
> I'm thinking of something along the lines of:-
>
>
> zlib = /usr/lib/z.dll
>
>
> zlib: $(zlib)
> 	 at build zlib
>
>
> Could I expect to be able to make 'zlib' if /usr/lib/z.dll did not exist?

No - "make" may report that it does not know how to make /usr/lib/z.dll
(But if you have a rule in the makefile that does this, it'll work).

-- 
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net


**= Email   15 ==========================**

Date:  Tue, 30 Mar 2004 13:49:56 +0000
From:  John Poltorak <jp at warpix.org>
Subject:  Re:  Targets in Makefiles

On Tue, Mar 30, 2004 at 07:21:08AM -0500, Thomas Dickey wrote:
> On Tue, 30 Mar 2004, John Poltorak wrote:
> 
> >
> >
> > Is it possible to use a name as a target in a Makefile by equating that
> > name with a file?
> >
> > I'm thinking of something along the lines of:-
> >
> >
> > zlib = /usr/lib/z.dll
> >
> >
> > zlib: $(zlib)
> > 	 at build zlib
> >
> >
> > Could I expect to be able to make 'zlib' if /usr/lib/z.dll did not exist?
> 
> No - "make" may report that it does not know how to make /usr/lib/z.dll
> (But if you have a rule in the makefile that does this, it'll work).


In this instance wouldn't the target - zlib check against its dependency 
- /usr/lib/z.dll and only invoke the build rule if /usr/lib/z.dll did 
notexist?

When I run 'make zlib' then the command 'build zlib' gets run irrespective 
of the presence of the dependency.


I must be misunderstanding something here...

 
> -- 
> Thomas E. Dickey
> http://invisible-island.net
> ftp://invisible-island.net


-- 
John




**= Email   16 ==========================**

Date:  Tue, 30 Mar 2004 14:29:44 +0000
From:  John Poltorak <jp at warpix.org>
Subject:   Conftools

I get this error msg when building EXPAT:-


+ : /usr/local/bin/autom4te
+ 2> /dev/null
+ dir=c:/usr/local/bin
+ outfile=
+ verbose=:
+ test 0 -gt 0
+ test -f configure.ac
+ test -f configure.in
+ infile=configure.in
+ test -z
+ test -z
+ outfile=configure
+ test -z configure
+ eval set $AUTOM4TE --language=autoconf --output=$outfile  $infile
+ set /usr/local/bin/autom4te --language=autoconf --output=configure configure.in
+ : autoconf: running /usr/local/bin/autom4te --language=autoconf --output=configure configure.in
+ >&2
+ exec /usr/local/bin/autom4te --language=autoconf --output=configure configure.in
SYS1041: The name conftools is not recognized as an
internal or external command, operable program or batch file.
../configure
configure: loading site script c:/ux2bs/lib/config.site


This is output when running sh -x autoconf (v2.58) so I guess Autoconf 
must be trying to run conftools as a command. 

Is this a bug in Autoconf?


-- 
John





**= Email   17 ==========================**

Date:  Tue, 30 Mar 2004 15:41:39 +0200 (CEST)
From:  Stefan Neis <neis at cdc.informatik.tu-darmstadt.de>
Subject:  Re:  Targets in Makefiles

On Tue, 30 Mar 2004, John Poltorak wrote:

> > > zlib = /usr/lib/z.dll
> > >
> > >
> > > zlib: $(zlib)
> > > 	 at build zlib
> 
> In this instance wouldn't the target - zlib check against its dependency 
> - /usr/lib/z.dll and only invoke the build rule if /usr/lib/z.dll did 
> notexist?

No. If the dependency does not exist, it will first create the dependency,
by using a suitable rule from the makefile.

> When I run 'make zlib' then the command 'build zlib' gets run irrespective 
> of the presence of the dependency.

Yes. The file "zlib" does not exist, so it's being created by running the
command you specified (build zlib). But that doesn't create a file named
zlib, so on the next call, make will see that zlib is missing and run the
command to create it...

Something which would work slightly better is this:

..PHONY: zlib

zlib: /usr/lib/z.dll

/usr/lib/z.dll:
	 at build zlib

"PHONY" just says: "It's not a real target, just check dependencies",
so "make zlib" will just ensure that /usr/lib/z.dll exists. If it doesn't,
it's going to run the command " at build zlib" to build it. Doesn't seem to
be easy to get make to handle a reasonable amount of all that
automatically, without having to specify rules for everything, though.

	Regards,
		Stefan
--
Micro$oft is not an answer. It is a question. The answer is 'no'.



**= Email   18 ==========================**

Date:  Tue, 30 Mar 2004 08:46:52 -0500 (EST)
From:  Thomas Dickey <dickey at his.com>
Subject:  Re:  Targets in Makefiles

On Tue, 30 Mar 2004, John Poltorak wrote:

> On Tue, Mar 30, 2004 at 07:21:08AM -0500, Thomas Dickey wrote:
> > On Tue, 30 Mar 2004, John Poltorak wrote:
> > > zlib = /usr/lib/z.dll
> > > zlib: $(zlib)
> > > 	 at build zlib
> > > Could I expect to be able to make 'zlib' if /usr/lib/z.dll did not exist?
> > No - "make" may report that it does not know how to make /usr/lib/z.dll
> > (But if you have a rule in the makefile that does this, it'll work).
>
> In this instance wouldn't the target - zlib check against its dependency
> - /usr/lib/z.dll and only invoke the build rule if /usr/lib/z.dll did
> notexist?

Not exactly.  "make" notices that there is no file named "zlib" and
runs the " at build zlib" command expecting to create it.  If there is
both a "zlib" and a "/usr/lib/z.dll", it compares the timestamps.
If there is no "/usr/lib/z.dll" and no rule to make it, "make" will
tell you that it does not know how to make that.

> When I run 'make zlib' then the command 'build zlib' gets run irrespective
> of the presence of the dependency.

That's a hole in "make" - I think you're bypassing the dependency
computation just a little.  Actually "make" has several holes in its
dependency checking (it doesn't look very far ahead, and the means by
which it does the analysis can vary from one implementation of "make" to
another).

-- 
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net